/**
 * Files Validator
 *
 * Domain-level validation for files.
 * File content validation is handled by @plyaz/storage (FileValidator, FilePathGenerator).
 * This validator provides domain-specific business rules and DB row validation.
 *
 * Note: Most file operations (upload, download, delete) are validated by:
 * - @plyaz/storage FileValidator for content/MIME validation
 * - @plyaz/storage FilePathGenerator.sanitizeFilename for filename sanitization
 * - @plyaz/api schemas for request validation
 * - This validator for DB row validation before insert
 */
import { BaseValidator } from '../../base';
import type { FilesCreateInput, FilesPatchInput, CoreDeleteOptions } from '@plyaz/types/core';
/**
 * Files Validator
 *
 * Validates file/media records before DB operations.
 * - createSchema: Validates data before repository.create()
 * - patchSchema: Validates partial updates
 * Provides domain-specific access control.
 */
declare class FilesValidatorClass extends BaseValidator<FilesCreateInput, FilesCreateInput, FilesPatchInput, CoreDeleteOptions, Record<string, unknown>> {
    constructor();
    /**
     * Check if user has permission to access file
     */
    validateUserAccess(userId: string, fileOwnerId: string, accessLevel: string | null, isAdmin?: boolean): boolean;
}
export { FilesValidatorClass };
export declare const FilesValidator: FilesValidatorClass;
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